Re: [Elecraft] KRC2 rs232 to cpu not working

John, Actually a standard serial cable can be connected to the KRC2 if jumpers W11 thru W20 are removed, no need to cut off wires in the cable. That information *is* in the plugging configuration charts. 73, Don W3FPR On 10/25/2015 8:43 AM, John K9UWA wrote: A simple statement in the KRC2

Re: [Elecraft] K2 - Unstable power output on 40m (digital modes)

Brian, Do things settle down if you drive a dummy load instead of the antenna? If so, that would nail it as an RF Feedback. If that is the case, use a good quality common mode choke at the junction of the coax with the ladderline. See K9YC's RFI information at

Re: [Elecraft] K2 - Unstable power output on 40m (digital modes)

Brian, The Elecraft K series requires a different way of setting power out on digital. You increase the audio drive from the SignaLink until the "ALC" meter is showing 4 to 5 bars and then adjust the power control to set the required power out, do not use the audio level to adjust the power.

Re: [Elecraft] KRC2 rs232 to cpu not working

THANKS JIM After 4+ years of dealing with the inability to reprogram the KRC2. Finally the real Answer as to how to connect the KRC2 to the Serial DB9 of your computer and program it with the Utility Program. Yes 4 years ago when I assembled the KRC2 after three very long frustrating days I

Re: [Elecraft] K2 - Unstable power output on 40m (digital modes)

Brian, Too early in the morning with me, I just noticed the fact you have a K2 not a K3 or KX3. In that case the ALC meter is different, but perhaps you may find something that is helpful on the late G4ILO's site: http://www.g4ilo.com/k2psk31.html 73 David Anderson GM4JJJ > On 25 Oct

Re: [Elecraft] Accuracy of Wattmeter W2 under 2 Watt

I use the NORTEX Accuprobe. Nice inexpensive, versitile and very sensitive. 73, Joe KK5NA On 10/25/2015 4:35 PM, Rick Robinson wrote: I don't have the paperwork in front of me but the Elecraft DL 1 dummy load has provisions to measure power up to

Re: [Elecraft] Search Archives

Or: http://elecraft.365791.n2.nabble.com/ On 10/25/2015 12:41 PM, Phil Wheeler wrote: Sure. I use http://marc.info/?l=elecraft and check Subject (rather than Body). Works well for me. 73, Phil W7OX On 10/25/15 11:20 AM, Bill Gaines wrote: Is there any way to search the archives of this list

Re: [Elecraft] Accuracy of Wattmeter W2 under 2 Watt

I don't have the paperwork in front of me but the Elecraft DL 1 dummy load has provisions to measure power up to 20 watts with a 10% accuracy. Just use a dvm. They also make a WM1 that handles more power with a .5 dbm accuracy. On Sunday, October 25, 2015, Hajo Dezelski wrote:

Re: [Elecraft] Accuracy of Wattmeter W2 under 2 Watt

Hi All, I agree with Ron, the DL1 can be very accurate with a good DVM. I have computed diode voltage loss using an attenuator. The results are here: http://www.kn5l.net/DL1-diode/ John KN5L On 10/25/2015 05:36 PM, Ron D'Eau Claire wrote: > The DL1 can be very accurate.

Re: [Elecraft] OT on balun usage

One point I've learned over the years is the fact baluns, regardless of the ratio, are power rated at matched values. i.e. a 1:1 is typically a 50 ohm to 50 ohm while a 4:1 is nominally a 200 ohm to 50 ohm device. And the power rating is mostly at closely matched values. Hence a 4:1 balun

Re: [Elecraft] Accuracy of Wattmeter W2 under 2 Watt

The DL1 can be very accurate. As a QRP and QRPp enthusiast I have a homebrew version that goes back decades before Elecraft, Hi! A simple RF voltmeter is a common way and inexpensive to measure very small power levels. (For the more exotic measurements a bolometer or, optionally, an accurate

Re: [Elecraft] OT on balun usage

Bob, You are quite correct, and your recommendation to use a balun rated at higher power levels than you plan to run is dead on. One point; in the main, it is better to use a current type rather than a voltage balun. Between your recommendation and my suggestion, a number of problems get

Re: [Elecraft] Which hand-held PTT switch?

Seems like you got a lot of recommendations for a foot switch, but not too many for a hand-held switch. The one from Ron, WD4AHZ, looks nice, but the price seems pretty stiff! Seems to me something like that should only cost $10-$15 at the most, but I'm probably still "living" in the 20th

Re: [Elecraft] Accuracy of Wattmeter W2 under 2 Watt

All, Keep in mind that if you use the excellent method Ron describes, there is a huge dependency on the precision of the dummy load - just any old resistor will not do unless it is characterized first. It must be characterized for not only resistance, but the resistance and any possible

Re: [Elecraft] Which hand-held PTT switch?

Thanks to everyone that responded. I decided to make my own from these parts at Mouser: http://www.mouser.com/search/ProductDetail.aspx?R=0virtualkey0virtualkey172-1112 http://www.mouser.com/search/ProductDetail.aspx?R=0virtualkey0virtualkeyED913 Total cost was less than $20 plus shipping. On

Re: [Elecraft] K3S Split Rx Ant2/Tx Ant1

Sounds good, I guess I'll re-wire it internally as necessary. -Original Message- From: Don Wilhelm [mailto:w3...@embarqmail.com] Sent: Sunday, October 25, 2015 2:08 PM To: ae...@carolinaheli.com; elecraft@mailman.qth.net Subject: Re: [Elecraft] K3S Split Rx Ant2/Tx Ant1 Jer, It all

[Elecraft] PTT

I used a heil headset with a footswitch when I had a K3. I use the same set up with my FTDX1200 and have a Yamaha C500 headset and footswitch that I use with my KX3. I never use Vox, haven't for 41 years. I also take a hand mike with me in the RV. De KE4D John Sent from my iPad

[Elecraft] Elecraft CW Net Announcement

Good Morning, Please join us this afternoon and evening. 14050 kHz at 2200z Sunday (3 PM PDT Sunday) 7045 kHz at 0100z Monday (6 PM PDT Sunday) 73, Kevin. KD5ONS - __ Elecraft mailing list Home:

Re: [Elecraft] K3S Split Rx Ant2/Tx Ant1

Jer, It all depends on how you have your K3S physically configured. If you do not have the subRX installed, that is not possible - although you can connect whatever antenna you now have on ANT2 to the RX ANT input and select the RX antenna. If you do have the sub-receiver, then you can use

[Elecraft] K3S Split Rx Ant2/Tx Ant1

Hi, I've read the owners manual and Fred Cady's K3 manual. Playing with the rig and still can't figure this out. Desired end result: When working split I want to receive on Ant2 and transmit on Ant1. I have the ATU option installed. Thanks in advance. Jerry Moore CDXA,

Re: [Elecraft] KRC2 rs232 to cpu not working

What is the issue with using the KRC2 on six meters? Mine works with my K3 on 6 and also 2 meters by setting the 6M transceiver band to the XV1 control output and 2M transceiver band to the XV2 control output. Mike KI0HA On 10/25/2015 7:43 AM, John K9UWA wrote: And I like many others now

Re: [Elecraft] K3S Split Rx Ant2/Tx Ant1

Hi Jerry. I have a K3, about 1 year old. I'm not sure which configuration you are using; so, this may or may not help. I do recall that when you add the second RX (receiver) you have the choice of attaching the second RX to the AUX port instead of the RX2 ANT port. I chose the AUX port and

Re: [Elecraft] K2 - Unstable power output on 40m (digital modes)

Don, Yes, things settle down with a dummy load, so it looks like I'm dealing with RF feedback. Per the original post, I'm using an Elecraft BL2 balun at the coax/ladderline junction. Shouldn't this act as the common mode choke that you suggest or are you suggesting to place a common mode choke

[Elecraft] New KE7X books for the K3s and K3

Greetings all, Just to let you know that I have completed "The Elecraft K3s and P3 -- Getting the Most from Your High Performance Station". This 324 page book includes over 160 diagrams for you visual learners and 43 exercises showing how to use K3s features for those who learn by doing. A

[Elecraft] Accuracy of Wattmeter W2 under 2 Watt

Hello, I have been using a wattmeter from Fox for powers under 1 Watt, but the display is too nervous and hard to read. So I stumbled over the Elecraft W2 and read that with the 200 W sensor, you can read also power levels under 2 Watt. This would be really helpful for I experiment with power

[Elecraft] Search Archives

Is there any way to search the archives of this list to see if my question has already been addressed before? AD8P __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm

Re: [Elecraft] K2 - Unstable power output on 40m (digital modes)

My take on this is baluns are baluns and common mode chokes are common mode chokes. In many cases baluns do not provide adequate common mode choking requirements. Thus both may be needed. Usually, the balun is located physically at the load and the common mode choke is located at the source.

Re: [Elecraft] K2 - Unstable power output on 40m (digital modes)

Yep, almost. The word "balun" is a portmanteau of "balanced" and "unbalanced." They are transformers or auto-transformers and their job is to keep a balanced feed to the antenna balanced when transitioning to unbalanced coax. Since they're transformers, they can also transform the

Re: [Elecraft] K2 - Unstable power output on 40m (digital modes)

Brian, The Elecraft BL2 is a good common mode choke. It is rated at 250 watts into a *matched* load. Your load certainly is not matched, and I do not know how to de-rate the power for any given load. Check to see if the balun core heats - if so, you could be operating the BL2 outside its

Re: [Elecraft] Search Archives

Sure. I use http://marc.info/?l=elecraft and check Subject (rather than Body). Works well for me. 73, Phil W7OX On 10/25/15 11:20 AM, Bill Gaines wrote: Is there any way to search the archives of this list to see if my question has already been addressed before? AD8P

Re: [Elecraft] K2 - Unstable power output on 40m (digital modes)

Yes. And even more important -- the word "balun" is used to describe so many (at least) ten different very kinds of components that the word itself should be banned from our language. ONE of those components is a common mode choke. Another is an array of common mode chokes. Another is a